Chalk Flight
One gymnast, one bar, real swing physics: the Blender-authored gymnast hangs from the high bar on a pendulum energy model — tap at the bottom of the swing to pump, and her arc grows until she is turning full giants. Tap up high to let go: she tucks into a spin that carries the swing’s momentum, opens out on the way down, and plants a landing on the royal-blue crash mat. Release phase, spin recovery and landing spot are judged into a score the flip cards celebrate — stick a 9 and the celesta agrees. Botch the release and she tumbles, shakes it off, walks back on a real gait and remounts for the next attempt. Piano waltz, glockenspiel pumps, harp release and taiko landings — every sound a sampled instrument.
Play it now
Tap once for sound - tap/space low = pump, high = release - R resets
The concept is the contract
The piece was concepted first — an AI key-art painting — and its hero assets were then code-modeled in headless Blender and audited against that concept. The pair below is the contract and the build.
Concept prompt
A cozy gymnastics hall in warm afternoon light: a small stylized gymnast with a teal leotard and a neat hair bun mid giant-swing on a steel high bar with tall support posts and taut anchor cables, thick royal-blue crash mats below dusted with chalk, a wooden vault box and folded mats along the wall, tall windows pouring golden light beams across a pale sprung floor, chalk dust floating in the beams, a small judges table with flip score cards at the side, cheerful determined mood with soft shadows, high-end stylized 3D game render, no text, no watermark, no UI
Code-modeled in Blender
The hero assets were modelled by agents writing Blender code against the platform sculpt kit — no downloaded models anywhere — and rendered by the studio harness for audit before entering the engine scene.
Made by AI, compiled by the real Unity 6 engine
The gymnast swings under a real pendulum energy model rather than a canned animation: tap at the bottom of the arc to pump, and tap near the top to release into ballistic flight, where a tuck spin carries the angular momentum the swing actually built. Land on the crash mat and the routine is judged live, with flip cards and a celesta flourish for a near-perfect score; a tumbled landing walks back on the proven gait and remounts. The rigged Blender figure is driven through the engine's own joint pivots. Every sound is a sampled instrument — piano, glockenspiel, harp, taiko and xylophone — never synthesized.